Fig. 2
From: Suppression of atom motion and metal deposition in mixed ionic electronic conductors
Critical electric potential difference (Vc) in the isothermal case. a Current density dependence of relative electrical resistance variation (R/R0) for several Cu-based mixed ionic/electronic conductors with L = 10 mm. b Experimentally determined Vc (L = 10 mm). c Material length L dependences of Vc and the critical current density Jc for Cu1.97S. The dashed line is a guide to the eyes. d Vc as a function of Cu off-stoichiometry δ in the Cu2-δS (δ = 0, 0.01, 0.03, 0.04, 0.06, and 0.1) samples with L = 10 mm. The dashed line represents the Vc curve based on Eq. 7. All measurements were carried out at 750 K
